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["WILLIAM JONES" <billj AT harborside.com>]

Here's a drawing of the key components of the Wirtz bike.  I may have left 
out a check valve or two.  The key to its success is the Wirtz alternator, 
which in this case is a double-chamber version that serves two hose coils, 
one on either side of the pedal asssembly.  Basically one coil receives water 
while the other receives compressed air, and then it 
flip-flops.http://home.earthlink.net/~clanl/wirtzbike.gif